My husband and I are planning a trip to Portland/Seattle in early August and want to be sure we catch all the must-sees. We'll be in the "area" for about 6 nights/7days. We were thinking about 3 days around Portland and 3ish days around Seattle. We plan to take the coastal route when we travel between the two. What must we see both on the coastal drive and in/around Portland and Seattle? Already considering a day trip to Mount Saint Helens and a trip to Multnomah Falls. We're not looking to do serious hiking, but don't mind a short trail for novice hikers if there's something to see/experience. Not big beer drinkers so breweries wouldn't top our list. We're up for good food and amazing sights (we're from Indiana...so we are uber-impressed with anything that isn't flat land).